Slide for molding-flasks.



H. J. WIEGMANN. SLIDE FOR MOLDING FLASKS.

APPLICATION FILED JUNE 24.1914.

Patented July 4, 1916.

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H 1 WI EGMANN SLIDE F OR MOLDING FLASKS. APPLICATION FILED JUNE 24. 19M.

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H. J. WIEGMANN.

SLIDE FOR MOLDING FLASKS.

PPLICATION FILED JUNE 24. 1914 WIN! / WLL 76 nmutoa Ill lwiaguawfv HENRY J' WIEGMANN, OF QUINCY, ILLINOIS.

sLInE ron MOLDING-FLASKS.

Specification of Letters Patent.

Application filed June 24, 1914. Serial No. 847,079.

To all whom it may concern Be it known that I, HENRY J. WIEGMANN, a citizen of the United States, residing at Quincy, in the county of Adams and State of Illinois, have invented new and useful Improvements in Slides for Molding- Flasks, of which the following is a specification.-

My invention relates to an improvement in slides adapted for use on molding flasks, it being used in connection with the draghinge and pin plates.

The object of my invention is to provide means for supporting the match-plate so employed with the roll or lift-off type of flask.

In the accompanying drawings: Figure l is a plan View of the drag-hinge plate show ing my invention applied, Fig. 2 is a side elevation of the same, Fig. 3 is a plan view of a drag-pin plate showing my improved slide attached, Fig. 4E is a side view, Fig. 5 is a top view of my improved slide, Fig. 6 is a bottom view, Fig. 7 is an edge view of the same, Fig. 8 is a topview of cope-left roller plate when swung back or open, Fig. 9 is a side view of the same, Fig. 10 is a top view of cope pin plate when open, Fig. 11 is a side view of the latter, Fig. 12 is a plan view of the match-plate, Fig. 13 is an elevation through the drag and cope pin plates showing a portion of the match-plate in place therebetween. Fig. 14 is a perspective view of the cope and drag sections showing the invention applied thereto; Fig. 15 is a I vertical sectional view showing the position of the match plate when supported by the slides; and Fig. 16 is a sectional view, similar to that shown in Fig. 15, showing the slide moved to a position to allow the match plate to rest upon the drag section.

As will be understood, there are two hinges, two rollers, two drag and two cope pins to a flask.

The numeral 1 represents the bottom or drag section; and 2, the cope of the flask. The right and left hinge plates 3, are screwed or bolted as usual to the hinge side of the drag, they being provided each with the usual curved upturned knife-edge hinge bearing 1 at one edge, and having at the outer edge the upstanding guide 5 for confining the cope against lateral movement. A groove 6 is formed transversely in the upper edge of the hinge plate, and my improved slide 7 is fitted to slide therein, the

slide having a guideslot 8 extending longitudinally thereof astride the guide-stud 9,

which holds the slide in place and guides it in its movements. The slide ,is provided with a handle 10 for convenience in manipulating it, and on its upper surface it has the slide lug 11 upon which the matchplate is adapted to rest. The slide has a groove 12 extending longitudinally throughout its length on the lower side, as shown in Fig. 6, the purpose of which is to allow sand to crowd out, and a recess 13 is provided at the end of the groove 6 to allow the sand to crowd out from this groove. Stop lugs 14 project upwardly at points at or near the inner edge of the hinge plate, they being disposed at right angles to each other, as shown in Fig. 1.

While the detailed description thus far has been confined to the drag hinge plate, it applies as well to the drag pin plate 20, which has the groove 6, slide 7, handle 10, slide-lug 11, slot 8, slide-guide 9, groove 12, and recess 13 for the sand to crowd out, and stop-lugs.

Referring now to the cope roller-plate, of which the left only is shown in Figs. 8 and 9 and the left or cope pin plates, of which one only is shown in Figs. 10 and 11: The former has the usual roller member 15 of the hinge adapted to fit the bearing 4:; these members each have stationary recessed lugs 16 and 17, the latter lugs 17 corresponding in position with the lugs 14; pre viously described.

The match-plate 18 is illustrated in Figs. 12 and 13. It has the usual space in the center for the pattern, and the V-shaped slots 19 at one edge to receive the drag-pin plates 20, and it is likewise provided with four slots 21, 21, forthe entrance ofthe slide-lugs 11.

As shown in Fig. 13, the match-plate. rests Patented July 4, 1916.

on the lugs 11, 11, on the slide when the V slides are in the position shown in full lines in Figs. 1 and 3, and the match-plate is permitted to come into engagement with? the stop-lugs 1 1,1 1 when I the slides are moved to the position indicated by the dotted lines.

In this invention the match plate 18 and slide 7 are very important elements and are used in connection with the cope pin plate,

drag pin and hinge plates, and the cope roller-plate. One of the main features is to provide means for supporting the match plate a slight distance from the drag during the ramming or packing of the sand in the mold, the drag and match plate being in an inverted position during this opera tion. This is accomplished by bringing the pins or lugs 11 of the slides 7 into the position shown in Fig. 15, allowing the sand to be packed above the drag, the drag being inverted so that the packing of the sand may be performed from the lower side of the drag. When the sand has been packed, and the drag has been returned to its normal position with the cope located there above, the cope is removed, and then the match plate 18, the molder or operator then applies his facing, (of another kind of sand), to the surface of the sand at the upper surface of the drag. The slides 7 are now moved so that the lugs 11 are in the position shown in Fig. 16. The match plate 18 with the pattern is again applied to the drag, and the match plate will now rest on the sand in the drag, as the lugs 11 have been returned to their normal position, or out of the path of the match plate. The match plate is now rapped down to print the facing or pattern in the sand, the sand during the rapping operation being packed down so that when the print or pattern is formed, the sand will be on a level with the top of the drag, excepting the indentations or formations made in the sand. A better mold is produced in this manner, for making a. casting with a smoother face. WVhen the match plate is rapped down the lugs 11 will enter the slots 21 in the match plate, and the plate will rest upon the lugs 14. With the molds in general use it isimpossible to rap the match plate down upon the drag, as it rests upon the drag when the sand is being rammed in. Now, after the match plate isI removed from the flask the slides 7 are re turned to the positions shown in Figs. 1, 3 and 15, so that the lugs 11 will enter the recesses or recessed lugs 16 of the cope, in order to take up the space caused by rapping down the match plate.

I claim:

1. The combination with a. section of a molding flask, and a match plate, of means for supporting the match plate above said section during the filling of the flask with sand, and means for causing a cooperation between said means and match plate to allow the match-plate to rest upon the sand, and come into engagement with the section as the sand is packed in the flask.

2. The combination with a section of a molding flask, and match plate, of a slide on the section for supporting the matchplate above the section, and means for operating the slide whereby the match plate may rest upon the section.

3. In a molding flask, the combination with a drag and match-plate, said matchplate provided with slots, of slides having lugs on which the match-plate is adapted to rest for supporting the match-plate above the drag, said slides adapted to be moved to bring the lugs in a position to enter the slots in the match-plate whereby the matchplate may rest upon the drag.

4. In a molding flask, the combination with a section of a molding flask and match plate, of slides having lugs on which the match plate is adapted to rest, and means for operating the slides whereby the match plate may rest upon the section.

5. The combination with a section of a molding flask, having a hinge plate and drag plate, said plates provided with grooves, of slides movably mounted in the grooves, and a match plate adapted to be supported by said slides above the section. Y 6. The combination with a section of a molding flask, having a hinge plate and drag plate, said plates provided with grooves, and at an end of each groove a recess is formed in the plates to allow sand to crowd out of the grooves, of slides movably mounted in the grooves, and a match plate adapted to be supported by said slides above the section.

7. The combination with a. section of a. molding flask and a match plate, of means for supporting the match plate above said section during the filling of the flask with sand, said means adapted to be moved to a position to allow the match plate to rest on the sand and come into engagement with the flask as the sand is packed in the flask.

8. The combination with a cope and drag section, a match plate, means on the drag for supporting the match plate thereabove, and recessed lugs on the cope in whichthe said means are received upon the removal of the match plate and when the cope sectionrests upon the drag.

In testimony whereof I affix my signature in the presence of two witnesses.

HENRY J. lVIEGMA-NN. Witnesses:

GERI-IARD G. Animus, FRANK A. LOBBE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patent, Washington, D. C. 

